CN112432498A - Gap type tunnel kiln - Google Patents

Gap type tunnel kiln Download PDF

Info

Publication number
CN112432498A
CN112432498A CN202011333366.2A CN202011333366A CN112432498A CN 112432498 A CN112432498 A CN 112432498A CN 202011333366 A CN202011333366 A CN 202011333366A CN 112432498 A CN112432498 A CN 112432498A
Authority
CN
China
Prior art keywords
tunnel kiln
main body
pipe
kiln main
tunnel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202011333366.2A
Other languages
Chinese (zh)
Other versions
CN112432498B (en
Inventor
黄四清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huanggang Huayao Zhongbo Kiln Technology Co ltd
Original Assignee
Huanggang Huayao Zhongbo Kiln Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huanggang Huayao Zhongbo Kiln Technology Co ltd filed Critical Huanggang Huayao Zhongbo Kiln Technology Co ltd
Priority to CN202011333366.2A priority Critical patent/CN112432498B/en
Publication of CN112432498A publication Critical patent/CN112432498A/en
Application granted granted Critical
Publication of CN112432498B publication Critical patent/CN112432498B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers
    • F27B9/262—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers on or in trucks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/36—Arrangements of heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • F27B2009/124—Cooling
    • F27B2009/126—Cooling involving the circulation of cooling gases, e.g. air
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Abstract

The invention provides a gap type tunnel kiln, which comprises a tunnel kiln main body, wherein kiln doors are arranged at two ends of the tunnel kiln main body, gas pipes are arranged at two sides of the tunnel kiln main body, combustion-supporting fans are arranged at the outer sides of the gas pipes, a smoke exhaust pipe is welded at the top of the tunnel kiln main body, a smoke exhaust fan is arranged at the inner side of the smoke exhaust pipe, a cyclone cylinder is welded at one side of the tunnel kiln main body, a suction pipe is welded at one side of the cyclone cylinder, a guide pipe is welded at the top of the cyclone cylinder, the gap type tunnel kiln can prevent products from being cracked due to quenching, the safety of the products is guaranteed, the heat released by cooling the products can be recycled, meanwhile, the temperature of the gas can be reduced by using absorption liquid, the cooling efficiency of the products is improved, the products preheated by preventing smoke dust and impurities from being polluted, the, the contact between the water vapor and the fired product is avoided, the quality of the product is guaranteed, and the method is suitable for firing and forming of the product.

Description

Gap type tunnel kiln
Technical Field
The invention relates to the technical field of tunnel kiln equipment, in particular to a clearance type tunnel kiln.
Background
The tunnel kiln is a traditional firing kiln type, the tunnel kiln is widely used in a plurality of industries such as ceramics, building materials, refractory materials, metallurgy and the like at present, the invention patent with the patent application number of CN201810140437.3 discloses an annular tunnel kiln with a tail gas treatment system, the existing tunnel kiln equipment basically has the advantages of continuous production, smoke exhaust, low heat extraction temperature, low energy consumption, large yield, small upper and lower sections, small temperature difference, easy control of kiln temperature, low labor intensity of loading and unloading products, firm structure, long service life and the like, and can meet the use requirements of firing and forming of products, however, for the existing tunnel kiln equipment, on one hand, when the products are cooled, because the temperature of the surrounding air environment is high, the cooling efficiency is low, and a large amount of heat is directly discharged into the air, so that energy is wasted, the products which are just fired are directly cooled by cold air, cause the product to burst easily, be unfavorable for ensuring product safety, on the other hand, in-process firing has certain flue gas outgoing, when utilizing the waste heat to preheat the product, can cause the smoke and dust to be attaching on the product, be unfavorable for the quality of guarantee product, on the one hand again, when firing the product and preheat the raw materials, produce certain harmful gas and vapor easily, cause harmful gas to leak easily, be unfavorable for ensuring environmental safety, perhaps vapor and the product contact of accomplishing the firing, influence the quality of product.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a clearance type tunnel kiln to solve the problems in the background technology, and the clearance type tunnel kiln is novel in structure, multiple in function and suitable for firing and forming products.
In order to achieve the purpose, the invention is realized by the following technical scheme: a gap type tunnel kiln comprises a tunnel kiln main body, kiln doors are installed at two ends of the tunnel kiln main body, gas pipes are installed at two sides of the tunnel kiln main body, combustion-supporting fans are installed at the outer sides of the gas pipes, secondary combustion-supporting fans are welded at two sides of the tunnel kiln main body, a smoke exhaust pipe is welded at the top of the tunnel kiln main body, a smoke exhaust fan is installed at the inner side of the smoke exhaust pipe, a cyclone cylinder is welded at one side of the tunnel kiln main body, a suction pipe is welded at one side of the cyclone cylinder, a guide pipe is welded at the top of the cyclone cylinder, a conveying mechanism is installed at the bottom of the tunnel kiln main body, connecting pipes are welded at two sides of the tunnel kiln main body, a return pipe is welded at one side of the tunnel kiln main body, a centrifugal fan is installed on the return pipe, a sleeve is welded, install the main shaft on the motor, telescopic inboard card has the cotton that absorbs water, the outside side welding of main shaft has the spring board, telescopic top welding has into the pipe, telescopic bottom welding has the exit tube, the switch is installed through the bolt in one side of tunnel kiln main part.
As a preferred embodiment of the present invention, the switch is connected to the combustion fan, the secondary combustion fan, the smoke exhaust fan, the tunnel kiln main body, the centrifugal fan and the motor through wires, and the tunnel kiln main body is provided with a button connected to the kiln door through a wire.
As a preferred embodiment of the present invention, the gas pipe, the combustion fan and the secondary combustion fan are uniformly distributed on both sides of the tunnel kiln main body, and the gas pipe, the combustion fan and the secondary combustion fan are all communicated with the inner side of the tunnel kiln main body.
As a preferred embodiment of the invention, the bottom of the smoke exhaust pipe penetrates through the tunnel kiln main body and is communicated with the top of the tunnel kiln main body, and the top of the smoke exhaust pipe extends to the outer side of the tunnel kiln main body.
In a preferred embodiment of the present invention, the elevating plate is installed inside the tunnel kiln main body, the elevating plate is distributed inside both ends of the tunnel kiln main body, and both ends of the connecting pipe are disposed on both sides of the elevating plate.
As a preferred embodiment of the present invention, one side of the cyclone is communicated with one side of the tunnel kiln main body through a suction pipe, the duct is disposed at the center of the cyclone, the other end of the duct passes through the top of the cyclone and is communicated with the other side of the tunnel kiln main body, and a discharge valve is installed at the bottom of the cyclone.
As a preferred embodiment of the present invention, one side of the centrifugal fan is communicated with one end of the tunnel kiln main body through a return pipe, and the other side of the centrifugal fan is communicated with the other end of the tunnel kiln main body through a return pipe.
As a preferred embodiment of the present invention, one end of the main shaft passes through the sleeve and is mounted on the output shaft of the motor by a bolt, and the main shaft is disposed at the bottom at the center of the sleeve.
In a preferred embodiment of the present invention, the spring plates are uniformly distributed on the outer side of the main shaft, and the absorbent cotton is clamped in the gaps between the spring plates.
In a preferred embodiment of the present invention, the spring plate includes a telescopic sleeve and a spring, the spring is welded inside the telescopic sleeve, and one end of the spring plate is clamped on an inner wall of the sleeve.
Compared with the prior art, the invention has the beneficial effects that:
1. when the gap type tunnel kiln is used, when products are fired and cooled, cold air is introduced into the leftmost end of the tunnel kiln main body through the return pipe by the centrifugal fan, the cold air cools the fired products in the tunnel kiln main body and then returns into the tunnel kiln main body through the connecting pipe to cool the products on the right side, the temperature of the products is gradually cooled and reduced during moving from right to left, the cooling air absorbs the heat of the products in flowing from left to right to increase the temperature, the products are prevented from being quenched and cracked, the safety of the products is guaranteed, hot gas enters the right end of the tunnel kiln main body through the guide pipe, the temperature of the gas is gradually reduced during flowing from right, the blank of the products is gradually heated and heated by the hot gas during moving from left, the heat released by cooling the products can be effectively reused, the energy waste is reduced, the energy consumption is saved, and meanwhile, the residual heat in the gas can be absorbed by the absorption liquid, the temperature of the gas is reduced, which is beneficial to improving the cooling efficiency of the product.
2. When the gap type tunnel kiln is used, the cooling air is heated by a product to form hot air, meanwhile, the cooling air blows off attached smoke dust on the product and impurities generated by frying the product, the smoke dust and the impurities are brought into the cyclone cylinder through the suction pipe, the smoke dust and the impurities enter the cyclone cylinder, fall down along the inner wall of the cyclone cylinder in a rotating mode under the action of centrifugal force and are collected at the bottom of the cyclone cylinder, the smoke dust and the impurities generated in the firing forming process of the product can be effectively filtered and collected through the discharging valve at the bottom of the cyclone cylinder, the smoke dust and the impurities are prevented from polluting the preheated product, and the cleanness and sanitation of the blank of the product are guaranteed.
3. When the gap type tunnel kiln is used, a centrifugal fan is used for introducing cold air into the left end of the tunnel kiln main body again to cool a product, a closed gas circulation is formed in the tunnel kiln main body to prevent harmful gas generated in the firing operation from flowing outwards, air environment safety is guaranteed, absorption liquid of the harmful gas is introduced into the sleeve through the inlet pipe, the absorption liquid is absorbed by the water absorption cotton on the top of the sleeve, the motor drives the spring plate to rotate through the main shaft, the spring plate pushes the water absorption cotton to rotate in the sleeve, when the spring plate and the water absorption cotton rotate downwards and upwards, the length of the spring plate is gradually increased, the water absorption cotton is gradually increased, the gas can penetrate through the water absorption cotton, water vapor generated in the preheating of the product is absorbed by the water absorption cotton, and meanwhile, the harmful gas and micro smoke dust generated in the firing operation of the product are absorbed by the residual absorption liquid in the water absorption cotton, Impurity, when spring board and cotton upwards down rotate that absorbs water, the spring board shortens by telescopic inner wall compression gradually, and the cotton that absorbs water is extruded absorption liquid by spring board and telescopic inner wall extrusion, and the absorbing liquid is gone out with the hosepipe that smoke and dust and vapor in the cotton that absorbs water become simultaneously, can avoid harmful gas to leak effectively, is favorable to ensureing environmental safety, has to avoid vapor and the product contact of accomplishing the firing effectively, ensures the quality of product.
Drawings
FIG. 1 is a schematic structural view of a gap tunnel kiln according to the present invention;
FIG. 2 is a cross-sectional view of a gap tunnel kiln of the present invention;
FIG. 3 is a side cross-sectional view of a gap tunnel kiln of the present invention;
FIG. 4 is a top view of a gap tunnel kiln of the present invention;
FIG. 5 is a side cross-sectional view of a sleeve of a gap tunnel kiln of the present invention;
in the figure: 1. a tunnel kiln main body; 2. a kiln door; 3. a gas pipe; 4. a combustion fan; 5. a secondary combustion-supporting fan; 6. a smoke exhaust pipe; 7. a smoke exhaust fan; 8. a cyclone; 9. a straw; 10. a conduit; 11. a transport mechanism; 12. connecting pipes; 13. returning the pipe; 14. a centrifugal fan; 15. a sleeve; 16. a motor; 17. a main shaft; 18. absorbent cotton; 19. a spring plate; 20. feeding a pipe; 21. discharging a pipe; 22. and (4) switching.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1 to 5, the present invention provides a technical solution: a clearance type tunnel kiln comprises a tunnel kiln main body 1, kiln doors 2 are installed at two ends of the tunnel kiln main body 1, gas pipes 3 are installed at two sides of the tunnel kiln main body 1, combustion-supporting fans 4 are installed at the outer sides of the gas pipes 3, secondary combustion-supporting fans 5 are welded at two sides of the tunnel kiln main body 1, a smoke exhaust pipe 6 is welded at the top of the tunnel kiln main body 1, a smoke exhaust fan 7 is installed at the inner side of the smoke exhaust pipe 6, a cyclone cylinder 8 is welded at one side of the tunnel kiln main body 1, a suction pipe 9 is welded at one side of the cyclone cylinder 8, a guide pipe 10 is welded at the top of the cyclone cylinder 8, a conveying mechanism 11 is installed at the bottom of the tunnel kiln main body 1, connecting pipes 12 are welded at two sides of the tunnel kiln main body 1, return pipes 13 are welded at one side of the tunnel kiln main body 1, centrifugal fans 14 are installed on the return pipes 13, the tunnel kiln comprises a sleeve 15, a motor 16 is installed at the bottom of the sleeve 15 through bolts, a main shaft 17 is installed on the motor 16, absorbent cotton 18 is clamped on the inner side of the sleeve 15, a spring plate 19 is welded on the outer side of the main shaft 17, an inlet pipe 20 is welded at the top of the sleeve 15, an outlet pipe 21 is welded at the bottom of the sleeve 15, a switch 22 is installed on one side of a tunnel kiln main body 1 through bolts, two kiln doors 2 can be adopted, burners are additionally installed on one side of the tunnel kiln main body 1, cold air is blown through the burners to cool products, the air blowing amount of each burner can be automatically set, the air blowing amount of the burners in the middle of the kiln is large during cooling, and the air blowing amount of kiln cars on two sides is small due to fast.
In a preferred embodiment of the present invention, the switch 22 is connected to the combustion fan 4, the secondary combustion fan 5, the smoke exhaust fan 7, the tunnel kiln main body 1, the centrifugal fan 14 and the motor 16 through electric wires, and the tunnel kiln main body 1 is provided with a button connected to the kiln door 2 through electric wires.
As a preferred embodiment of the present invention, the gas pipe 3, the combustion fan 4 and the secondary combustion fan 5 are uniformly distributed on both sides of the tunnel kiln main body 1, and the gas pipe 3, the combustion fan 4 and the secondary combustion fan 5 are all communicated with the inner side of the tunnel kiln main body 1, so that air can be effectively introduced into and discharged from the gas pipe 3 by the combustion fan 4, the combustion efficiency of the gas is improved, and air is supplemented to support combustion by the combustion fan 5, the combustion rate of the gas is improved, and the full combustion of the gas is ensured.
As a preferred embodiment of the invention, the bottom of the smoke exhaust pipe 6 penetrates through the tunnel kiln main body 1 and is communicated with the top of the tunnel kiln main body 1, and the top of the smoke exhaust pipe 6 extends to the outer side of the tunnel kiln main body 1, so that the smoke exhaust pipe 6 can be effectively utilized to timely exhaust combustion waste gas in the tunnel kiln main body 1 outwards, and the combustion environment in the tunnel kiln main body 1 is guaranteed.
In a preferred embodiment of the present invention, the tunnel kiln body 1 is provided with elevating plates at the inner side thereof, the elevating plates are disposed at the inner sides of both ends of the tunnel kiln body 1, both ends of the connecting pipe 12 are disposed at both sides of the elevating plates, and during cooling, the centrifugal fan 14 introduces cold air into the leftmost end of the tunnel kiln body 1 through the return pipe 13, the cold air cools the fired product in the tunnel kiln body 1 and then returns the cooled product to the tunnel kiln body 1 through the connecting pipe 12, thereby cooling and cooling the product at the right side, gradually cooling and reducing the temperature of the product while moving from right to left, and the cooling air absorbs the heat of the product to increase in the flow from left to right, thereby preventing the product from cracking due to rapid cooling, and ensuring the safety of the product.
As a preferred embodiment of the invention, one side of the cyclone cylinder 8 is communicated with one side of the tunnel kiln main body 1 through a suction pipe 9, the guide pipe 10 is arranged at the center of the cyclone cylinder 8, the other end of the guide pipe 10 passes through the top of the cyclone cylinder 8 and is communicated with the other side of the tunnel kiln main body 1, a blanking valve is arranged at the bottom of the cyclone cylinder 8, when cooling air is heated by a product to form hot air, the cooling air blows off smoke dust attached to the product and impurities generated by frying the product, the smoke dust and the impurities are brought into the cyclone cylinder 8 through the suction pipe 9, the smoke dust and the impurities rotate and fall along the inner wall of the cyclone cylinder 8 under the action of centrifugal force after entering the cyclone cylinder 8, the smoke dust and the impurities are collected at the bottom of the cyclone cylinder 8 and are discharged outwards through the blanking valve at the bottom of the cyclone cylinder 8, the smoke dust, the impurities and the impurities generated in the product during firing and forming can be effectively filtered and, prevent smoke and dust and impurity pollution and carry out the product that preheats, the clean health of guarantee product stock, the hot gas passes through pipe 10 and enters into the right-hand member of tunnel kiln main part 1, and gas is when flowing right, and the temperature reduces gradually, and the in-process that the product stock removed left is heated up by the hot gas gradually, and then can be recycled effectively with the heat that the product cooling released, reduces energy waste, energy saving consumed.
As a preferred embodiment of the present invention, one side of the centrifugal fan 14 is communicated with one end of the tunnel kiln main body 1 through the return pipe 13, and the other side of the centrifugal fan 14 is communicated with the other end of the tunnel kiln main body 1 through the return pipe 13, so that after the heat of the hot air is absorbed by the product to form cold air, the cold air can be introduced into the left end of the tunnel kiln main body 1 again by the centrifugal fan 14 to cool the product, a closed gas circulation is formed in the tunnel kiln main body 1, thereby preventing harmful gas generated in the firing operation from flowing outwards, and ensuring the safety of the air environment.
As a preferred embodiment of the present invention, one end of the main shaft 17 passes through the sleeve 15 and is mounted on the output shaft of the motor 16 by a bolt, and the main shaft 17 is disposed at the bottom of the center of the sleeve 15.
In a preferred embodiment of the present invention, the spring plates 19 are uniformly distributed on the outer side of the main shaft 17, and the absorbent cotton 18 is caught in the gaps between the spring plates 19.
As a preferred embodiment of the present invention, the spring plate 19 includes a telescopic sleeve and a spring, the spring is welded inside the telescopic sleeve, one end of the spring plate 19 is clamped on the inner wall of the sleeve 15, an absorption liquid of harmful gas is introduced into the sleeve 15 through an inlet pipe 20, the absorption liquid is absorbed by the absorbent cotton 18 at the top of the sleeve 15, the motor 16 drives the spring plate 19 to rotate through the main shaft 17, when the spring plate 19 pushes the absorbent cotton 18 to rotate in the sleeve 15, when the spring plate 19 and the absorbent cotton 18 rotate downward and upward, the spring plate 19 is gradually longer, the absorbent cotton 18 is gradually enlarged, so that gas can pass through the absorbent cotton 18, and water vapor generated during preheating of a product is absorbed by the absorbent cotton 18, and simultaneously, harmful gas, tiny smoke and impurities generated during product firing operation are absorbed by the absorption liquid remaining in the absorbent cotton 18, when the spring plate 19 and the absorbent cotton 18 rotate upward and downward, the spring plate 19 is gradually compressed and shortened by the inner wall of the sleeve 15, the absorbent cotton 18 is extruded by the spring plate 19 and the inner wall of the sleeve 15, meanwhile, the absorbent liquid carries out the water changed by the smoke dust and the water vapor in the absorbent cotton 18, meanwhile, the absorbent liquid can be used for absorbing residual heat in the gas, the temperature of the gas is reduced, and the cooling efficiency of the product is improved.
The intermittent tunnel kiln provides electric energy for all electric equipment through an external power supply, when in use, ingredients of a product are sent into the tunnel kiln main body 1 through the right end of the trolley and move to the left end of the tunnel kiln main body 1 through the conveying mechanism, air can be effectively fed and discharged from the gas pipe 3 by the combustion fan 4, the combustion efficiency of gas is improved, air is supplemented and supported by the combustion fan 5, the combustion rate of the gas is improved, the full combustion of the gas is ensured, the combustion waste gas in the tunnel kiln main body 1 is timely and outwards discharged by the smoke exhaust pipe 6, the combustion environment in the tunnel kiln main body 1 is ensured, when the product is fired and cooled, the centrifugal fan 14 leads cold air into the leftmost end of the tunnel kiln main body 1 through the return pipe 13, the cold air cools the fired product in the tunnel kiln main body 1 and then returns to the tunnel kiln main body 1 through the connecting pipe 12, the product on the right side is cooled, the temperature of the product is gradually cooled and reduced in the movement from right to left, the cooling air absorbs the heat of the product in the flow from left to right to increase, the product is prevented from being cracked due to shock cooling, the safety of the product is ensured, when the cooling air is heated by the product to form hot air, the cooling air blows off the smoke dust attached to the product and impurities generated by frying the product, the smoke dust and the impurities are brought into the cyclone cylinder 8 through the suction pipe 9, the smoke dust and the impurities enter the cyclone cylinder 8 and then rotate and fall along the inner wall of the cyclone cylinder 8 under the action of centrifugal force, the smoke dust and the impurities are collected at the bottom of the cyclone cylinder 8 and are discharged outwards through the discharge valve at the bottom of the cyclone cylinder 8, the smoke dust and the impurities generated in the firing and forming of the product can be effectively filtered and collected, the product preheated by the pollution of the smoke dust and the impurities is prevented, and the, hot gas enters the right end of the tunnel kiln main body 1 through the guide pipe 10, when the gas flows rightwards, the temperature is gradually reduced, the product blank is gradually heated and heated by the hot gas in the process of moving leftwards, further, the heat released by cooling the product can be effectively reused, the energy waste is reduced, the energy consumption is saved, after the heat of hot air is absorbed by the product to form cold air, the cold air can be introduced into the left end of the tunnel kiln main body 1 again by using the centrifugal fan 14 to cool the product, a closed gas circulation is formed in the tunnel kiln main body 1, the harmful gas generated in the firing operation is prevented from flowing outwards, the safety of the air environment is ensured, the absorption liquid of the harmful gas is introduced into the sleeve 15 through the inlet pipe 20, the absorption liquid is absorbed by the absorbent cotton 18 at the top of the sleeve 15, the motor 16 drives the spring plate 19 to rotate through the main shaft 17, and the spring plate 19 pushes the absorbent cotton 18 to rotate in, when the spring plate 19 and the absorbent cotton 18 rotate downwards and upwards, the spring plate 19 is side-long gradually, the absorbent cotton 18 is enlarged gradually, so that gas can penetrate through the absorbent cotton 18, water vapor generated during preheating of a product is absorbed by the absorbent cotton 18, harmful gas, tiny smoke dust and impurities generated during burning of the product are absorbed by residual absorption liquid in the absorbent cotton 18, when the spring plate 19 and the absorbent cotton 18 rotate upwards and downwards, the spring plate 19 is gradually compressed and shortened by the inner wall of the sleeve 15, the absorbent cotton 18 is extruded by the spring plate 19 and the inner wall of the sleeve 15, meanwhile, the absorption liquid carries water changed from the smoke dust and the water vapor in the absorbent cotton 18 out, meanwhile, the absorbent liquid can absorb residual heat in the gas, the temperature of the gas is reduced, and the cooling efficiency of the product is improved.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. A clearance type tunnel kiln is characterized in that: comprises a tunnel kiln main body (1), kiln doors (2) are installed at two ends of the tunnel kiln main body (1), gas pipes (3) are installed at two sides of the tunnel kiln main body (1), combustion fans (4) are installed at the outer sides of the gas pipes (3), secondary combustion fans (5) are welded at two sides of the tunnel kiln main body (1), a smoke exhaust pipe (6) is welded at the top of the tunnel kiln main body (1), a smoke exhaust fan (7) is installed at the inner side of the smoke exhaust pipe (6), a cyclone cylinder (8) is welded at one side of the tunnel kiln main body (1), a suction pipe (9) is welded at one side of the cyclone cylinder (8), a guide pipe (10) is welded at the top of the cyclone cylinder (8), a conveying mechanism (11) is installed at the bottom of the tunnel kiln main body (1), and connecting pipes (12) are welded at two sides of the tunnel kiln, one side welding of tunnel cave main part (1) has return pipe (13), install centrifugal fan (14) on return pipe (13), the middle part welding of return pipe (13) has sleeve (15), motor (16) are installed through the bolt in the bottom of sleeve (15), install main shaft (17) on motor (16), the inboard card of sleeve (15) has cotton (18) that absorb water, the outside side welding of main shaft (17) has spring plate (19), the top welding of sleeve (15) has into pipe (20), the bottom welding of sleeve (15) has exit tube (21), switch (22) are installed through the bolt in one side of tunnel cave main part (1).
2. The tunnel kiln of claim 1, wherein: the switch (22) is connected with the combustion fan (4), the secondary combustion fan (5), the smoke exhaust fan (7), the tunnel kiln main body (1), the centrifugal fan (14) and the motor (16) through electric wires, a button is installed on the tunnel kiln main body (1), and the button is connected with the kiln door (2) through electric wires.
3. The tunnel kiln of claim 1, wherein: the gas pipe (3), the combustion-supporting fan (4) and the secondary combustion-supporting fan (5) are uniformly distributed on two sides of the tunnel kiln main body (1), and the gas pipe (3), the combustion-supporting fan (4) and the secondary combustion-supporting fan (5) are communicated with the inner side of the tunnel kiln main body (1).
4. The tunnel kiln of claim 1, wherein: the bottom of the smoke exhaust pipe (6) penetrates through the tunnel kiln main body (1) and is communicated with the top of the tunnel kiln main body (1), and the top of the smoke exhaust pipe (6) extends to the outer side of the tunnel kiln main body (1).
5. The tunnel kiln of claim 1, wherein: the lifting plate is installed to the inboard of tunnel cave main part (1), the lifting plate distributes in the inboard at the both ends of tunnel cave main part (1), the both ends setting of connecting pipe (12) is in the both sides of lifting plate.
6. The tunnel kiln of claim 1, wherein: one side of the cyclone cylinder (8) is communicated with one side of the tunnel kiln main body (1) through a suction pipe (9), the guide pipe (10) is arranged at the center of the cyclone cylinder (8), the other end of the guide pipe (10) penetrates through the top of the cyclone cylinder (8) and is communicated with the other side of the tunnel kiln main body (1), and a discharging valve is installed at the bottom of the cyclone cylinder (8).
7. The tunnel kiln of claim 1, wherein: one side of the centrifugal fan (14) is communicated with one end of the tunnel kiln main body (1) through a return pipe (13), and the other side of the centrifugal fan (14) is communicated with the other end of the tunnel kiln main body (1) through the return pipe (13).
8. The tunnel kiln of claim 1, wherein: one end of the main shaft (17) penetrates through the sleeve (15) and is installed on an output shaft of the motor (16) through a bolt, and the main shaft (17) is arranged at the bottom of the center of the sleeve (15).
9. The tunnel kiln of claim 1, wherein: the spring plates (19) are uniformly distributed on the outer side of the main shaft (17), and the water absorption cotton (18) is clamped in the gaps among the spring plates (19).
10. The tunnel kiln of claim 1, wherein: the spring plate (19) comprises a telescopic sleeve and a spring, the spring is welded on the inner side of the telescopic sleeve, and one end of the spring plate (19) is clamped on the inner wall of the sleeve (15).
CN202011333366.2A 2020-11-25 2020-11-25 Gap type tunnel kiln Active CN112432498B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011333366.2A CN112432498B (en) 2020-11-25 2020-11-25 Gap type tunnel kiln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011333366.2A CN112432498B (en) 2020-11-25 2020-11-25 Gap type tunnel kiln

Publications (2)

Publication Number Publication Date
CN112432498A true CN112432498A (en) 2021-03-02
CN112432498B CN112432498B (en) 2022-07-01

Family

ID=74698026

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011333366.2A Active CN112432498B (en) 2020-11-25 2020-11-25 Gap type tunnel kiln

Country Status (1)

Country Link
CN (1) CN112432498B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102748942A (en) * 2012-07-26 2012-10-24 福建省佳美集团公司 Wide-bodied energy-saving and environment-friendly tunnel kiln
CN204154107U (en) * 2014-10-24 2015-02-11 王新华 Roller kilns, tunnel cave combustion air energy saver
CN106017072A (en) * 2016-07-06 2016-10-12 福建省德化同鑫陶瓷有限公司 Energy-saving hot wind circulation tunnel kiln and waste heat recycling method of tunnel kiln
CN210242456U (en) * 2019-06-20 2020-04-03 河南亚新窑炉有限公司 Tunnel cave flue gas circulated processing apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102748942A (en) * 2012-07-26 2012-10-24 福建省佳美集团公司 Wide-bodied energy-saving and environment-friendly tunnel kiln
CN204154107U (en) * 2014-10-24 2015-02-11 王新华 Roller kilns, tunnel cave combustion air energy saver
CN106017072A (en) * 2016-07-06 2016-10-12 福建省德化同鑫陶瓷有限公司 Energy-saving hot wind circulation tunnel kiln and waste heat recycling method of tunnel kiln
CN210242456U (en) * 2019-06-20 2020-04-03 河南亚新窑炉有限公司 Tunnel cave flue gas circulated processing apparatus

Also Published As

Publication number Publication date
CN112432498B (en) 2022-07-01

Similar Documents

Publication Publication Date Title
CN101857383B (en) Beam limekiln
CN103641345B (en) Material-distribution type cooling process of white cement clinker
CN201254529Y (en) Cement clinker calcination system
CN103424001A (en) High-temperature material vertical cooler and waste heat using system
CN105861768A (en) Blast furnace cinder dry-process treatment device
CN201395616Y (en) Composite heat recycling type continuous equal-temperature spheroids annealing furnace
CN111426206A (en) Sintering cooling and waste heat recovery integrated kiln
CN112432498B (en) Gap type tunnel kiln
CN207147253U (en) A kind of waste heat comprehensive utilization system in aluminum ingot casting workshop
CN111518972B (en) High-temperature slag and recovery processing device of waste heat thereof
CN208765487U (en) A kind of novel high quality foundry furnace
CN203396236U (en) Large size alumina ceramic substrate sintering kiln
CN201463514U (en) Sintering unit for producing alumina
CN201423484Y (en) Efficient aluminum alloy brazing furnace
CN213713922U (en) High-melting-efficiency low-loss melting furnace
CN201678589U (en) U-shaped pipe heat absorption type heat recovery device for compressed air convection glass tempering furnace
CN205192225U (en) Gas roll table kiln
CN210314351U (en) Vanadium pentoxide fuse-piece furnace
CN211651251U (en) Continuous feeding and preheating device for scrap steel
CN220270038U (en) Tunnel drying kiln
CN220169954U (en) Decomposing furnace fuel conveying system
CN110873529A (en) Energy-saving kiln
CN117739683A (en) Melting furnace system for recycling fly ash
CN219161001U (en) Grate cooler suitable for sodium chromate clinker cooling
CN115055491B (en) Continuous recovery system for fiber reinforced composite material

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant